insheet using .\data\raw\d07_text_station_raw_2013_02_25.txt, clear
ren v1 timestamp
ren v2 station

forval i=1/8{
	local j=`i'*3
	local k=`j'+1
	local l=`j'+2
	ren v`j' flow`i'
	ren v`k' occup`i'
	ren v`l' speed`i'
	}
	
	drop if flow1==. & flow2==. & flow3==. & flow4==. & flow5==. & flow6==. & flow7==. & flow8==.
	drop speed*
	drop flow7 occup7 flow8 occup8
	forval i=1/6{
		drop if occup`i'==1
	}
